Table 2

Presence of chronic disabling fatigue (CDF) in total sample by presence at previous time point

Based on multiple imputation*
n/total (%)
Imputed OR* (95% CI)
CDF at age 16CDF at 1351/206 (24.7%)16.8 (8.4–33.8)
No CDF at 13260/13 772 (1.9%)
CDF age 18CDF at 1678/311 (25.0%)12.9 (6.4–26.1)
No CDF at 16340/13 667 (2.5%)
CDF at 13, CDF at 1617/51 (33.3%)7.9 (3.2–19.3)
CDF at 13, no CDF at 169/155 (5.8%)
No CDF at 13, CDF at 1661/260 (23.5%)12.1 (5.7–25.6)
No CDF at 13, no CDF at 16331/13 512 (2.5%)
  • *Imputations based on previous CDF, maternal age at delivery, maternal education, total family index score recorded during pregnancy, total family adversity index (FAI) score recorded when the child was 8–10 years old, three additional components of the FAI recorded at 8–10 years, total authorised absences during year 11 of schooling, total unauthorised absences during year 11 of schooling, mean Key Stage 2 mark and total score on the Strength and Difficulties Questionnaire measured when the child was 11.